package com.yjck.ijpay.utils;

import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 * @Copyright (C), 2015-2021,鹰击长空科技服务(苏州)有限公司
 * @Author: lyz
 * @Date: 2021/3/17 14:34
 * @Description: //模块目的、功能描述
 * @History: //修改记录
 * <author> <time> <version> <desc>
 * 修改人姓名 修改时间 版本号   描述
 */
public class HttpUtils {

    public static String getClientIp(HttpServletRequest httpServletRequest) {
        String ipAddress = httpServletRequest.getRemoteAddr();
        if (ipAddress.equals("127.0.0.1") || ipAddress.equals("0:0:0:0:0:0:0:1")) {
            //根据网卡获取本机配置的IP地址
            InetAddress inetAddress = null;
            try {
                inetAddress = InetAddress.getLocalHost();
            } catch (UnknownHostException e) {
                e.printStackTrace();
            }
            ipAddress = inetAddress.getHostAddress();
        }
        //对于通过多个代理的情况，第一个IP为客户端真实的IP地址，多个IP按照','分割
        if (null != ipAddress && ipAddress.length() > 15) {
            if (ipAddress.indexOf(",") > 0) {
                ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
            }
        }
        return ipAddress != null ? ipAddress : "123.12.12.123";
    }
}
